# GetFieldID(nint, string, string)

> Returns the field ID for an instance (nonstatic) field of a class.

## Definition

* **Type:** Method
* **Namespace:** [UnityEngine](/engine/6000.7/script-reference/unityengine.md)
* **Assembly:** UnityEngine.AndroidJNIModule

## GetFieldID(IntPtr, string, string)

```csharp
public static nint GetFieldID(nint clazz, string name, string sig)
```

### Parameters

**** (\[IntPtr]\(https\://learn.microsoft.com/dotnet/api/system.intptr)): **** (\[string]\(https\://learn.microsoft.com/dotnet/api/system.string)): **** (\[string]\(https\://learn.microsoft.com/dotnet/api/system.string)): 

### Returns

| Type                                                           | Description |
| -------------------------------------------------------------- | ----------- |
| [IntPtr](https://learn.microsoft.com/dotnet/api/system.intptr) |             |

### Remarks

Additional Resources: [Java Native Interface Specification (Oracle)](http://download.oracle.com/javase/1.5.0/docs/guide/jni/spec/jniTOC.html)